rhythmbox unresponsive while doing MTP operations

I'm experiencing the same behaviour, also with Nokia N95 and Rhythmbox 0.11.5 in Hardy Heron.

In Ubuntu 8.10 I've noticed that Rhythmbox and Pidgin are slow to respond when transferring many audio files over MTP to a Sansa Fuze. Usually Firefox, Gnome-terminal, and Gnome are unaffected. However, in the process of typing up this comment Gnome was temporarily unresponsive except for mouse movement and the caps-lock key.

The transfer rate is also really slow, and the percentage in the Rhythmbox window reads "(0%)" even after it has transferred a significant number of tracks.

This is fixed upstream now.

This bug was fixed in the package rhythmbox - 0.12.6-0ubuntu1

---------------
rhythmbox (0.12.6-0ubuntu1) lucid; urgency=low

  * New upstream version:
    - Context pane plugin
    - Power management plugin reworked to use new D-Bus API
    - MTP plugin reworked to do everything asynchronously
    - Volume slider levels match what PulseAudio displays
    - Playback pipeline filter interfaces actually work properly now
    - Much improved visualization performance when crossfading is enabled
    Bugs fixed:
    499048 - Filter insertion and removal on non-xfade backend is not robust.
    499051 - xfade backend doesn't play nice with LADSPA filters
    499052 - Filter removal on xfade backend is not robust.
    534981 - Add multi threading to MTP Support (lp: #235726)
    564772 - MTP plugin crash when I plug-in my Creative Zen 32Gb
    564800 - GnomeGoals: Remove deprecated GTK+ symbols
    589845 - im-status: use mission control dbus interface (lp: #424499)
    590474 - Podcast entry disappears from display during download (lp: #451176)
    594901 - Rhythmbox fails to display cover image from id3 tag (lp: #426329)
    595966 - leaked string in rb_stock_icons_init
    596573 - [PATCH] Do not use gnome-power-manager for inhibits,
             instead use gnome-session
    597706 - rhythmbox crashed with SIGSEGV in g_object_get() (lp: #445047)
    597708 - rhythmbox crashed with SIGSEGV in rb_source_get_config_widget()
             (lp: #444526)
    597708 - DAAP plugin doesn't link to libsoup
    598135 - Should init error before call libhal_device_get_property_string
    598302 - Use GDK spawn functions to handle multi-screen
    598613 - Rhythmbox shows cover art of previous track in Notification Bubble
             if current track has no cover art (lp: #451086)
    598955 - Use Cubic volume when StreaVolume interface is available
    600058 - Feed is not parsed when title tag is empty (lp: #468323)
    600513 - Generates invalid Brasero project
    600549 - Crash when transferring a track over MTP with a slash in
             the track title
    600624 - track information is not displayed correctly sometimes
             when playing internet radios (lp: #467308)
    600995 - Elapsed time indicator is wrong when seeking (lp: #474145)
    601352 - Crash while editing automatic playlist
    601460 - Rhythmbox gets laggy when copying music to iPod
    601528 - Play button doesn't work after finishing a playlist (lp: #474155)
    602615 - rhythmbox fails to build if python bindings are built and ld's
             --no-add-needed is used
    New and updated translations
  * debian/patches/05_brasero_burn_xml.patch:
    - the change is in the new version
  * debian/patches/90_autoconf.patch:
    - new version update
  * debian/patches/91_git_change_fix_inhibit_use.patch
    - the change is in the new version
 -- Sebastien Bacher <email address hidden> Mon, 23 Nov 2009 11:45:02 +0100

This is not fixed as of Lucid with Version 0.12.8. Same freeze every time the device connects/updates/does anything at all.